The city of Poreč is a town and municipality on the western coast of the Istrian peninsula, in Istria County, Croatia. Its major landmark is the 6th century Euphrasian Basilica, a UNESCO World Heritage Site since 1997. The city of Porec dominates the area from Tarski Bay on the north to Limska cove to the south of the western coast of Istria as well as a significant part of the interior of the peninsula almost to its center point. Poreč is almost 2,000 years old, and is set around a harbor protected from the sea by the small island of Saint Nicholas/San Nicolo (St. Nicholas). In ancient times the town was an Roman colony since the 2nd century BC . Today Porec is a town with a preserved Roman urban pattern and numerous unique Ancient Roman, early and late medieval buildings. The town plan still shows the ancient Roman Castrum structure. The main streets are Decumanus and Cardo Maximus, still preserved in their original forms. Marafor is a Roman square with two temples attached. One of them, erected in the first century AD, is dedicated to the Roman god Neptune; its dimensions are 30 by 11 m (98.43 by 36.09 ft). The most outstanding being Euphrasius' Basilica built in the 6th century on the site of an earlier basilica from the 4th century and of the even earlier Mauro's oratorium, of which floor mosaics have been preserved.

The main city square, the Forum is located in the westeren part on the tip of the peninsula where in prehistoric times probably stood the cultic sanctuary. In the period between 535 and 550 bishop Euphrasius erected his own monumental building on the walls of the former the first church space - the domus ecclesia of which floor mosaics have been preserved. A few houses from the Romanesque period have been preserved and beautiful Venetian Gothic palaces can be seen here. Originally a Gothic Franciscan church built in the 13th century, the 'Dieta Istriana' hall was remodeled in the Baroque style in the 18th century.The Porec museum houses a collection of archeological findings, an etnografic and artistic collection and a collection of stone monuments. Porec streetsToday, tourist infrastructure is intentionally dispersed along the 37 km long coastline, between the river Mirna and the deep Limski Kanal (Lim Fjord).